MGMT and depressive symptom measurement: In ALL-MDD, the performance of MGMT is similar to that of ALL-ALL, with an accuracy of 66.67% (14 of 21) in identifying euthymia, 73.17% (29 of 41) in identifying mild depression, 70.83% (17 of 24) in identifying moderate depression, and 66.67% (4 of 6) in identifying severe depression.